Trading API Overview

The Trading API lets you manage accounts, place and manage orders, and receive real-time order status updates — all programmatically. It supports stocks and single-leg options trading.

tip

The Webull SDK simplifies integration by handling authentication and protocol details. See SDKs and Tools for installation.

Supported Products

Product	Description	Details
Stocks	US Equities	Stocks
Single-Leg Options	US Single-Leg Options	Single-Leg Options

Feature Matrix

✓ = Supported, X = Not yet supported (may be added in the future), - = Not applicable

Feature	US Stocks	US Single-Leg Options
Market Order	✓	✓
Limit Order	✓	✓
Stop Loss	✓	✓
Stop Loss Limit	✓	✓

API Reference

Instruments

Endpoint	Rate Limit	Description
Stock Instruments	60/60s	Retrieve instrument details for given stock symbols

Account

Endpoint	Rate Limit	Description
Account List	10/30s	Retrieve all accounts under your credentials
Account Balance	10/30s	Query balance, buying power, and cash details
Account Positions	10/30s	Retrieve current holdings and positions

Orders

Endpoint	Rate Limit	Description
Preview Order	15/s	Estimate costs before placing an order
Place Order	15/s	Submit orders for stocks
Replace Order	15/s	Modify an existing open order
Cancel Order	15/s	Cancel a pending or open order
Order History	40/2s	Query historical order records
Open Orders	40/2s	Retrieve current open orders
Order Detail	40/2s	Get detailed info for a specific order

Real-Time Events

Endpoint	Protocol	Description
Trade Event Subscription	gRPC	Subscribe to live order status changes (filled, cancelled, failed, etc.)

What's Next

• Trading API Getting Started — Make your first trade in 5 steps
• Accounts — Query balances and positions
• Orders — Stock order management
• Single-Leg Options — Single-leg options order management